Steam-engine valve.



No. 662,994. Patented Deg. 4, I900.

E; A. WEIMER.

\ STEAMENGINE VALVE. I Application filed. Sept. 17, 1900.;

I (No Model.)

UNITED STATES PATENT OFFICE.

EDGAR A. WEIMER, OF LEBANON, PENNSYLVANIA.

-STEAM-ENGINE VALVE.

SPECIFICATION forming part of Letters Eatent No. 662,994, dated December4, 1900. Application filed September 17, 1900. SerialNo. 30,296. (Nomodel.)

To all whom it may concern:

Be it known that I, EDGAR A. WEIMER, a citizen of the United States,residing at Lebanon, in the county of Lebanon and State of Pennsylvania,have invented certain new and useful Improvements in Steam-EngineValves; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to steam-engine valves, and has especial referenceto that class known as puppet-valves and it consists in certainimprovements in construction which will be fully disclosed in thefollowing specification and claims.

In the accompanying drawings, which form part of this specification,Figure 1 represents a vertical section of an exhaust-valve embodying myinvention, and Fig. 2 a side elevation of a drip-cup and a stirrup forsecuring the cup to the valve-chest.

Reference being bad to the drawings and the numerals thereon, 1indicates the valvecase; 2, the removable cover; 3, the upper horizontalconcentric valve-seat; 4:, the lower horizontal concentric valve-seat,and 5 the valve, which is provided with an upper spider 6 and a lowerspider 7, the former having a hub 8, provided with a straight bore 9,and the latter having a hub 10, provided with a connterbore of twodifferent diameters, as indicated at 11 and 12, and a valve-rod 13 oftwo different diameters, as indicated at 14C and 15, the larger diameter14 extending through the upper spider and into the upper and enlargedpart 11 of the bore of the hub 10, the lower end of which part of thebore forms a seat or shoulder for the lower end of the enlarged part 14of the rod, and the reduced part 15 of the rod extends through the lowerendof the valve-case, while the upper end of the rod extends through theupper end of the case and is provided with a stuffing-box 16 and a gland17.

Below the hub 10 the rod 13 is surrounded by a sleeve, secured on thefree end of the rod by a washer 18 and a nut 19 and ajamnut 20, and atits upper end and bearing against the lower end of the hub 10 is a nut21, which forms a collar, between which and the lower end of theenlarged part 14 of the valve-rod the valve 5 is secured by the nuts 19and 20. The valve-rod, with its sleeve, extends through the lower end ofthe valve-case and is provided with a stufling-box 22 and a gland 23.

A drip-cup 24 is suspended below the valverod by a stirrup 25, securedto the lower end of the valve-chest in any preferred manner.

The valve 5 is provided with two bearingfaces 26 and 27, as is common tothis class of valves, which engage the valve-seats 3 and 4, and thevalve is effectively guided to its seat by the rod passing through theupper spider therein and by the rod extending through the opposite endsof the valve-case, and the valve can be readily tightened on thevalve-rod by the nuts 19 and 20, which are outside the valve case andaccessible to the engineer while the valve is in motion.

It is obvious that my invention may be applied to the steam-supplyvalves of an engine with equal facility.

Having thus fully described my invention, what I claim is- 1. Asteam-engine puppet-valve having a rod extending through the centerthereof and through both ends of the valve-case, whereby the valve isguided to its seat, and means on the free end of the rod outside thecase for tightening the valve on the rod.

2. A steam-engine puppet-valve having an upper and a lower bearing-face,a rod extending through the center of the valve and through oppositeends of the valve-case, concentric horizontal seats in the case engagedby the valve, whereby the valve is guided to its seat, and means on thefree end of the rod outside the case for tightening the valve on therod.

3. A steam-engine valve having an upper

